Albert Marth discovered NGC 2864 = m 163 on 6 Mar 1864 and recorded "vF, pL, lE." His position matches CGCG 034-044 = PGC 26644.
400/500mm - 17.5" (2/1/03): very faint, small, slightly elongated 0.6'x0.5'. Low, even surface brightness and requires averted vision for a positive identification. Situated near the Hydra-Leo-Cancer border.
Notes by Steve Gottlieb